Show complete solution and draw cashflow diagram A firm is considering which of two mechanical devices to install to reduce costs in a particular situation. Both devices cost $1000 and have useful lives of 5 years and no salvage value. Device A can be expected to result in $300 savings annually. Device B will provide cost savings of $400 the first year but will decline $50 annually, making the second-year savings $350, the third-year savings $300, and so forth. With interest at 7%, which device should the firm purchase?

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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Show complete solution and draw cashflow diagram

A firm is considering which of two mechanical devices to install to reduce costs in a particular situation. Both devices cost $1000 and have useful lives of 5 years and no salvage value. Device A can be expected to result in $300 savings annually. Device B will provide cost savings of $400 the first year but will decline $50 annually, making the second-year savings $350, the third-year savings $300, and so forth. With interest at 7%, which device should the firm purchase?

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